leap year

https://w3id.org/framester/wn/wn30/instances/synset-leap_year-noun-1 <https://w3id.org/framester/wn/wn30/schema/NounSynset>

xsd:string leap year 
xsd:string 15202230-n 
leap year  @en-us
366 days  @en-us
bissextile year  @en-us
intercalary year  @en-us
110916323  @en-us
114341471  @en-us
xsd:string
xsd:string 0.25 
in the Gregorian calendar: any year divisible by 4 except centenary years divisible by 400  @en-us
xsd:string 115202230 

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